MARC Home Page > Transportation Department > ITS Architecture > Market Packages > Definitions
This
market package provides an alternative approach for surveillance of the
roadway network. Two general implementation paths are supported by this
market package: 1) wide-area wireless communications between the vehicle
and Information Service Provider is used to communicate current vehicle
location and status, and 2) dedicated short range communications between
the vehicle and roadside is used to provide equivalent information directly
to the Traffic Management Subsystem. The first approach leverages wide
area communications equipment that may already be in the vehicle to support
personal safety and advanced traveler information services. The second
approach utilizes vehicle equipment that supports toll collection, in-vehicle
signing, and other short range communications applications identified
within the architecture. The market package enables traffic managers to
monitor road conditions, identify incidents, analyze and reduce the collected
data, and make it available to users and private information providers.
It requires one of the communications options identified above, roadside
beacons and wireline communications for the short range communications
option, data reduction software, and utilizes wireline links between the
Traffic Management Subsystem and Information Service Provider Subsystem
to share the collected information. Both “Opt out” and “Opt
in” strategies are available to ensure the user has the ability
to turn off the probe functions to ensure individual privacy. Due to the
large volume of data collected by probes, data reduction techniques are
required, such as the ability to identify and filter out-of-bounds or
extreme data reports.
